1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
svetoff [14.1K]
3 years ago
5

What is the purpose of a primary key?

Computers and Technology
1 answer:
tia_tia [17]3 years ago
4 0

Answer:

 Primary key:

A primary key is the collection of field value which persist unique value in the table. The primary key value can be use to represent the entire record throughout the table. In the database, each table only contain one primary key.

 The purpose of the primary key is used to implemented the relationship within the two tables in the database. More explicitly the primary key is define as, primary key is "target" that the foreign key can easily referenced. It basically consist multiple attributes in the table.

You might be interested in
The shortest compressed format of the ipv6 address 2001:0db8:0000:1470:0000:0000:0000:0200 is
devlian [24]

The answer is : 2001:DB80:1470::200

A double colon ( :: ) can replace any single, contiguous string of one or more 16-bit segments (hextets) which is  consist of all 0s, and it can only be used once per IPv6 address. Therefore,any leading 0s (zeros) in any 16-bit section or hextet can be omitted.

3 0
3 years ago
A website wants to gives out detailed information to viewers about its upcoming conference and also provides a feature for searc
Alenkinab [10]

Answer: WIREFRAME

A website wireframe, also known as a page schematic or screen blueprint, is a visual guide that represents the skeletal framework of a website.[1]:166 Wireframes are created for the purpose of arranging elements to best accomplish a particular purpose. The purpose is usually being informed by a business objective and a creative idea. The wireframe depicts the page layout or arrangement of the website's content, including interface elements and navigational systems, and how they work together.[2]:131 The wireframe usually lacks typographic style, color, or graphics, since the main focus lies in functionality, behavior, and priority of content.[1]:167 In other words, it focuses on what a screen does, not what it looks like.[1]:168 Wireframes can be pencil drawings or sketches on a whiteboard, or they can be produced by means of a broad array of free or commercial software applications. Wireframes are generally created by business analysts, user experience designers, developers, visual designers, and by those with expertise in interaction design, information architecture and user research.

3 0
3 years ago
Which principle of design does a designer apply when they create rhythmic movement in a garment by using recurring pleats or det
WITCHER [35]

Answer:

Repetition, and regular rhythm

Explanation:

Its certainly repetition method, and repetition method is of three types which are repetition, pattern and rhythm.

Remember repetition can be boring at times as we need to read same thing again and again. However, repetition sometimes can be good like the one we are referring to, and the other one can be like placing the logo or menu at same place in all web page. And its since it creates a habit in us for reading the web pages, And hence we can understand faster, and it looks please to our eyes hence as well.  

4 0
3 years ago
When the "swen" virus infected someone's system, it made significant changes to the registry that caused it to be extremely diff
Effectus [21]
<span>In certain cases, when the Swen executable is removed or renamed by an anti virus program without stopping to fix the registry, it then will become impossible to run any executable files on the machine. This happens because windows will be unable to find the file that is associated with any executables on it's hard drive.</span>
7 0
3 years ago
HELP! WILL GIVE BRAINLIEST
maw [93]

Answer:

Creative, helpful, communicative, colorful, detailed

Explanation:

6 0
2 years ago
Read 2 more answers
Other questions:
  • A ___________ is an algorithm for which it is computationally infeasible to find either (a) a data object that maps to a pre-spe
    5·1 answer
  • Co to jest podprogram (procedura lub funkcja)? Zaznacz poprawną odpowiedź. a) Wielokrotne powtarzanie tych samych poleceń. b) Wy
    8·1 answer
  • Gina works in an SDLC team. When Gina makes changes to a file, no one else is allowed to acess it. Which type of version control
    10·1 answer
  • Dayla is concerned about managing her digital footprint. What does she mean by this? *
    7·1 answer
  • A computer is a multipurpose device that accepts input, processes data, stores data, and produces output, all according to a ser
    9·1 answer
  • Which statement best describes the Tell Me feature in PowerPoint 2016?
    8·1 answer
  • i have a class for computers and i need a free hardrive are there any websites that give me one for free in 3 days??​
    15·1 answer
  • About C header files of C programming
    8·1 answer
  • Non linear editing can cause _____ where edit and re-edit and re-edit again can cause video to be less true than the original ma
    11·1 answer
  • What was one effect of better printing methods during the Ming Dynasty? Updated trade routes A new merchant class Increased lite
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!